The following summary of planned new and ongoing road improvements over the coming week is correct as of 17 April 2015 but could be subject to change due to weather conditions or unforeseen circumstances. All our improvement work is carried out with the aim of causing as little disruption as possible.

M1 junction 3, London Gateway Services: Horticulture work

The northbound entry and exit slip roads will be closed overnight, between 11pm and 5am, on Friday 24 April. A clearly signed diversion will be in place for the entry slip road via junction 1. A clearly signed diversion will be in place for the exit slip road via junction 5.

M4 junctions 1 to 3, Greater London: Drainage work

The westbound carriageway and slip roads will be closed overnight, between 10pm and 5am, for four nights from Monday 20 April.
The eastbound carriageway and slip roads will be closed overnight, between 10pm and 5am, for two nights from Monday 20 April.
Clearly signed diversions will be in place via the A4 and A312.

M20/A20 junction 1, Kent: Litter clearance

The westbound entry slip road will be closed overnight, between 10pm and 5am, on Wednesday 22 April. A clearly signed diversion will be in place via the A20, A225, B2174, A2018 and A223 to Crittals Corner.

M25 junction 7, Surrey: Structure maintenance

The anti-clockwise link roads to both carriageways of the M23 will be closed overnight, between 10pm and 5.30am, from Wednesday 22 April until Wednesday 27 May (Monday to Friday only). A clearly signed diversion will be in place via junction 6.

M25 junction 15, Greater London: Signage maintenance

The anti-clockwise link road to the M4 will be closed overnight, between 10pm and 6am, for three nights from Thursday 23 April. A clearly signed diversion will be in place via junction 14.

M25 junction 16, Buckinghamshire: Carriageway resurfacing

The clockwise link road to the M40 eastbound will be closed overnight, between 10pm and 5.30am, for five nights from Monday 20 April. Work on Friday will start at 11pm. A clearly signed diversion will be in place via junction 17.
The clockwise link road to the M40 westbound will be closed overnight, between 10pm and 5.30am, for six nights from Tuesday 21 April. Work on Friday will start at 11pm. A clearly signed diversion will be in place via junction 17.

M25 junction 23, Hertfordshire: Carriageway sweeping

The anti-clockwise entry and exit slip roads will be closed overnight, between 10pm and 5am, on Thursday 23 April. A clearly signed diversion for the entry slip road will be in place via junction 24. A clearly signed diversion for the exit slip road will be in place via junction 22.

M25 junction 24, Hertfordshire: Carriageway sweeping

The clockwise entry and exit slip roads will be closed overnight, between 10pm and 5am, on Wednesday 22 April. A clearly signed diversion for the entry slip road will be in place via junction 23. A clearly signed diversion for the exit slip will be in place via junction 25.

M25 junction 25, Hertfordshire: Carriageway resurfacing

The clockwise entry and exit slip roads will be closed overnight, between 10pm and 5.30am, for two nights from Monday 20 April. A clearly signed diversion for the entry slip road will be in place via junction 24. A clearly signed diversion for the exit slip road will be in place via junction 26.

The clockwise entry slip road will be closed overnight, between 10pm and 5.30am, for two nights from Thursday 23 April. Work on Friday night will start at 11pm. A clearly signed diversion will be in place via junction 24.

M25 junction 26, Essex: Carriageway resurfacing

The clockwise exit slip road will be closed overnight, between 11pm and 5.30am, on Friday 24 April. A clearly signed diversion will be in place via junction 27 and junction 7 of the M11.

M25 junction 28, Essex: Carriageway resurfacing

The clockwise dedicated link road to the A12 eastbound will be closed overnight, between 10pm and 5am, for five nights from Monday 20 April. A clearly signed diversion will be in place via junction 28.

M26 junction 2a to M25, Kent: Carriageway resurfacing

The westbound carriageway will be closed overnight, between 10pm and 5.30am, for five nights from Monday 20 April. Work on Friday night will start at 11pm. A clearly signed diversion will be in place via the A25 and A21 to join the M25 at junction 5.

The southbound carriageway will be closed overnight, between 11pm and 5am, on Friday 24 April.
The northbound carriageway will be closed overnight, between 10pm and 5am, on Saturday 25 April.
Clearly signed diversions will be in place via the A1001.

A13 Wennington to North Stifford, Essex: Major improvement

The eastbound carriageway will be closed between the A1012 and M25 junction 30 overnight, between 10pm and 5.30am, for two nights from Monday 20 April. A clearly signed diversion will be in place via the A1306, West Thurrock Arterial Road and A1012 to A13.

The westbound carriageway will be closed between the A126 and M25 junction 30 overnight, between 10pm and 5.30am, for three nights from Wednesday 22 April. Work on Friday will start at 11pm. A clearly signed diversion will be in place via the A1012, West Thurrock Arterial Road and A1306 to Wennington interchange.

A2 Darenth Interchange, Kent: Litter clearance

The westbound dedicated link road to the A282 northbound will be closed overnight, between 11pm and 5am, on Friday 24 April. A clearly signed diversion will be in place via the roundabout.

A282 junction 1a, Kent: Dart Charge construction work

The northbound entry slip road will be closed overnight, between 8:30pm and 5.30am, for five nights from Tuesday 21 April. A clearly signed diversion will be in place via junction 1b.

The northbound carriageway will be closed between the slip roads overnight, between 10pm and 5.30am, on Monday 20 April. A clearly signed diversion will be in place via the exit and entry slip roads.

A282 (M25) Dartford – Thurrock Crossing: Maintenance work

The following closures will be in place, with a fully signed diversion for oversized vehicles for the northbound east tunnel closures.

Monday 20 April (8.30pm to 5.30am): northbound east tunnel closure

Tuesday 21 April (8.30pm to 5:30am): northbound west tunnel closure

Wednesday 22 April (8.30pm to 5:30am): northbound west tunnel closure

Thursday 23 April (8.30pm to 5.30am): northbound west tunnel closure

Friday 24 April (8.30pm to 5.30am): northbound west tunnel closure

Saturday 25 April (8.30pm to 5.30am): northbound west tunnel closure

Sunday 26 April (8.30pm to 5.30am): northbound east tunnel closure

A1089 Tilbury, Essex: Carriageway resurfacing

A contraflow will be in place between the Asda roundabout and the Tilbury Docks entrance road overnight, between 10pm and 5.30am, for five nights from Monday 20 April. Work on Friday will be between 11pm and 6am. Any abnormal loads wishing to pass through the contraflow will be required to pull into the layby either side of the works and call to be escorted.

Safety at roadworks:

Highways England is working with the industry and road users to reduce the risks of working on the roads. For the safety of road workers and all road users, when you are approaching roadworks:

Keep within the speed limit – it is there for your safety.

Get into the correct lane in good time – don’t keep switching.

Concentrate on the road ahead, not the roadworks.

Be alert for works’ traffic leaving or entering roadworks.

Keep a safe distance – there could be queues in front.

Observe all signs – they are there to help you.

And be alert for road workers, the roads are their workplace.

General enquiries

Members of the public should contact the Highways England customer contact centre on 0300 123 5000.

Media enquiries

Journalists should contact the Highways England press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.